A modified power method for the multilayer multigroup two-dimensional neutron diffusion equation
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Nuclear Energy"
DOI: 10.1016/j.anucene.2017.08.059
Abstract: In this work we present a methodology of solution of the multigroup multi-layer stationary neutron diffusion equation in two-dimensional cartesian geometry. This eigenvalue problem describes the criticality of nuclear reactor, that is, it establishes the… read more here.
Keywords: power method; methodology; problem; diffusion ... See more keywords
Adaptive power method for estimating large deviations in Markov chains.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.107.034137
Abstract: We study the performance of a stochastic algorithm based on the power method that adaptively learns the large deviation functions characterizing the fluctuations of additive functionals of Markov processes, used in physics to model nonequilibrium… read more here.
Keywords: power method; power; method estimating; markov chains ... See more keywords
Power Method for Robust Diagonal Unloading Localization Beamforming
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2019.2908245
Abstract: We propose a robust version of the diagonal unloading (DU) beamforming for the acoustic source localization problem in high noise conditions. The DU beamformer exploits the subspace orthogonality property by the removal or the attenuation… read more here.
Keywords: method robust; method; diagonal unloading; power method ... See more keywords
Noisy Accelerated Power Method for Eigenproblems With Applications
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Signal Processing"
DOI: 10.1109/tsp.2019.2908126
Abstract: This paper introduces an efficient algorithm for finding the dominant generalized eigenvectors of a pair of symmetric matrices. Combining tools from approximation theory and convex optimization, we develop a simple scalable algorithm with strong theoretical… read more here.
Keywords: method eigenproblems; method; noisy accelerated; accelerated power ... See more keywords
A Low-complexity Minimum Variance Algorithm Combined with Power Method for Ultrasound Imaging
Sign Up to like & getrecommendations! Published in 2020 at "Acoustical Physics"
DOI: 10.1134/s1063771020020074
Abstract: Abstract Aiming at the problem of high complexity and poor real-time performance of the traditional minimum variance (MV) algorithm, a low-complexity minimum variance algorithm combined with power method is proposed. Firstly, the echo data is… read more here.
Keywords: variance algorithm; algorithm; complexity; power method ... See more keywords
Non-Stationary Acceleration Strategies for PageRank Computing
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DOI: 10.3390/math7100911
Abstract: In this work, a non-stationary technique based on the Power method for accelerating the parallel computation of the PageRank vector is proposed and its theoretical convergence analyzed. This iterative non-stationary model, which uses the eigenvector… read more here.
Keywords: strategies pagerank; power method; non stationary; stationary acceleration ... See more keywords